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    高低血鈣的臨床表現比較?

    PGY‧面試襲來
    腎臟科 鈣離子 電解質 面試襲來
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      TinyNotes last edited by TinyNotes

      alt text
      (圖片來源:http://bestpractice.bmj.com/best-practice)

      Answer

      高血鈣 低血鈣
      肌肉 肌肉無力 肌肉痙攣(cramps)
      心臟QT interval 變短 延長、小心torsades de pointes
      中樞神經 神經抑制、嗜睡、嚴重者甚至昏迷、死亡 神經過度興奮、變得比較high、癲癇、喉頭痙攣等
      Deep Tendon Reflex 變弱 變強
      特別的signs Chvostek’s (+) ; Trousseau’s (+)
      • Chvostek’s signs:
        →敲facial nerve,因神經過於敏感,嘴角會抽動
      • Trousseau’s signs:
        →綁上壓脈帶後,給予大於SBP的壓力,會出現手腕痙攣(spasm)
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